X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Fcompiler%2Fiface%2FLoadIface.lhs;h=316aa0ab5f1585f76776c742f251695fac2f0728;hb=f4c9d2b23bd63b48566e0ca3b13c8bdfc4cd0c0b;hp=be77d8f281bf88d65bb881472f23fd66b0ad93a2;hpb=98744cef7b82e7eefbb1c6f1d8b9e28c415939c4;p=ghc-hetmet.git diff --git a/ghc/compiler/iface/LoadIface.lhs b/ghc/compiler/iface/LoadIface.lhs index be77d8f..316aa0a 100644 --- a/ghc/compiler/iface/LoadIface.lhs +++ b/ghc/compiler/iface/LoadIface.lhs @@ -6,33 +6,34 @@ \begin{code} module LoadIface ( loadHomeInterface, loadInterface, - loadSrcInterface, loadOrphanModules, + loadSrcInterface, loadOrphanModules, loadHiBootInterface, readIface, -- Used when reading the module's old interface - predInstGates, ifaceInstGates, ifaceStats, + predInstGates, ifaceInstGates, ifaceStats, discardDeclPrags, initExternalPackageState ) where #include "HsVersions.h" +import {-# SOURCE #-} TcIface( tcIfaceDecl ) + import DriverState ( v_GhcMode, isCompManagerMode ) import DriverUtil ( replaceFilenameSuffix ) import CmdLineOpts ( DynFlags( verbosity ), DynFlag( Opt_IgnoreInterfacePragmas ), opt_InPackage ) import Parser ( parseIface ) -import IfaceSyn ( IfaceDecl(..), IfaceConDecl(..), IfaceClassOp(..), IfaceInst(..), - IfaceRule(..), IfaceExpr(..), IfaceTyCon(..), IfaceIdInfo(..), +import IfaceSyn ( IfaceDecl(..), IfaceConDecl(..), IfaceClassOp(..), IfaceConDecls(..), + IfaceInst(..), IfaceRule(..), IfaceExpr(..), IfaceTyCon(..), IfaceIdInfo(..), IfaceType(..), IfacePredType(..), IfaceExtName, mkIfaceExtName ) -import IfaceEnv ( newGlobalBinder, lookupIfaceExt, lookupIfaceTc ) -import HscTypes ( HscEnv(..), ModIface(..), emptyModIface, - ExternalPackageState(..), emptyTypeEnv, emptyPool, +import IfaceEnv ( newGlobalBinder, lookupIfaceExt, lookupIfaceTc, lookupOrig ) +import HscTypes ( ModIface(..), TyThing, emptyModIface, EpsStats(..), addEpsInStats, + ExternalPackageState(..), PackageTypeEnv, emptyTypeEnv, lookupIfaceByModName, emptyPackageIfaceTable, - IsBootInterface, mkIfaceFixCache, - Pool(..), DeclPool, InstPool, - RulePool, addRuleToPool, RulePoolContents + IsBootInterface, mkIfaceFixCache, Gated, implicitTyThings, + addRulesToPool, addInstsToPool, availNames ) -import BasicTypes ( Version, Fixity(..), FixityDirection(..) ) +import BasicTypes ( Version, Fixity(..), FixityDirection(..), isMarkedStrict ) import TcType ( Type, tcSplitTyConApp_maybe ) import Type ( funTyCon ) import TcRnMonad @@ -48,25 +49,26 @@ import NameEnv import MkId ( seqId ) import Packages ( basePackage ) import Module ( Module, ModuleName, ModLocation(ml_hi_file), - moduleName, isHomeModule, moduleEnvElts, - extendModuleEnv, lookupModuleEnvByName, moduleUserString + moduleName, isHomeModule, emptyModuleEnv, + extendModuleEnv, lookupModuleEnvByName, lookupModuleEnv, + moduleUserString ) -import OccName ( OccName, mkClassTyConOcc, mkClassDataConOcc, - mkSuperDictSelOcc, - mkDataConWrapperOcc, mkDataConWorkerOcc ) +import OccName ( OccName, mkOccEnv, lookupOccEnv, mkClassTyConOcc, mkClassDataConOcc, + mkSuperDictSelOcc, mkDataConWrapperOcc, mkDataConWorkerOcc ) import Class ( Class, className ) -import TyCon ( DataConDetails(..), tyConName ) +import TyCon ( tyConName ) import SrcLoc ( mkSrcLoc, importedSrcLoc ) import Maybes ( isJust, mapCatMaybes ) import StringBuffer ( hGetStringBuffer ) import FastString ( mkFastString ) -import ErrUtils ( Message ) +import ErrUtils ( Message, mkLocMessage ) import Finder ( findModule, findPackageModule, hiBootExt, hiBootVerExt ) import Lexer import Outputable import BinIface ( readBinIface ) import Panic +import List ( nub ) import DATA_IOREF ( readIORef ) @@ -85,7 +87,7 @@ import Directory \begin{code} loadSrcInterface :: SDoc -> ModuleName -> IsBootInterface -> RnM ModIface -- This is called for each 'import' declaration in the source code --- On a failure, fail in the mnad with an error message +-- On a failure, fail in the monad with an error message loadSrcInterface doc mod_name want_boot = do { mb_iface <- initIfaceTcRn $ loadInterface doc mod_name @@ -98,6 +100,41 @@ loadSrcInterface doc mod_name want_boot elaborate err = hang (ptext SLIT("Failed to load interface for") <+> quotes (ppr mod_name) <> colon) 4 err +loadHiBootInterface :: TcRn [Name] +-- Load the hi-boot iface for the module being compiled, +-- if it indeed exists in the transitive closure of imports +-- Return the list of names exported by the hi-boot file +loadHiBootInterface + = do { eps <- getEps + ; mod <- getModule + + ; traceIf (text "loadHiBootInterface" <+> ppr mod) + + -- We're read all the direct imports by now, so eps_is_boot will + -- record if any of our imports mention us by way of hi-boot file + ; case lookupModuleEnv (eps_is_boot eps) mod of { + Nothing -> return [] ; -- The typical case + + Just (_, False) -> -- Someone below us imported us! + -- This is a loop with no hi-boot in the way + failWithTc (moduleLoop mod) ; + + Just (mod_nm, True) -> -- There's a hi-boot interface below us + + + do { -- Load it (into the PTE, and return the exported names + iface <- loadSrcInterface (mk_doc mod_nm) mod_nm True + ; sequenceM [ lookupOrig mod_nm occ + | (mod,avails) <- mi_exports iface, + avail <- avails, occ <- availNames avail] + }}} + where + mk_doc mod = ptext SLIT("Need the hi-boot interface for") <+> ppr mod + <+> ptext SLIT("to compare against the Real Thing") + + moduleLoop mod = ptext SLIT("Circular imports: module") <+> quotes (ppr mod) + <+> ptext SLIT("depends on itself") + loadOrphanModules :: [ModuleName] -> TcM () loadOrphanModules mods | null mods = returnM () @@ -159,14 +196,12 @@ loadInterface :: SDoc -> ModuleName -> WhereFrom loadInterface doc_str mod_name from = do { -- Read the state - env <- getTopEnv - ; let { hpt = hsc_HPT env - ; eps_var = hsc_EPS env } - ; eps <- readMutVar eps_var - ; let { pit = eps_PIT eps } + (eps,hpt) <- getEpsAndHpt + + ; traceIf (text "Considering whether to load" <+> ppr mod_name <+> ppr from) -- Check whether we have the interface already - ; case lookupIfaceByModName hpt pit mod_name of { + ; case lookupIfaceByModName hpt (eps_PIT eps) mod_name of { Just iface -> returnM (Right iface) ; -- Already loaded -- The (src_imp == mi_boot iface) test checks that the already-loaded @@ -174,12 +209,11 @@ loadInterface doc_str mod_name from -- if an earlier import had a before we got to real imports. I think. other -> do - { if_gbl_env <- getGblEnv - ; let { hi_boot_file = case from of + { let { hi_boot_file = case from of ImportByUser usr_boot -> usr_boot ImportBySystem -> sys_boot - ; mb_dep = lookupModuleEnvByName (if_is_boot if_gbl_env) mod_name + ; mb_dep = lookupModuleEnvByName (eps_is_boot eps) mod_name ; sys_boot = case mb_dep of Just (_, is_boot) -> is_boot Nothing -> False @@ -190,27 +224,29 @@ loadInterface doc_str mod_name from ; read_result <- findAndReadIface doc_str mod_name hi_boot_file ; case read_result of { Left err -> do - { let { -- Not found, so add an empty iface to + { let fake_iface = emptyModIface opt_InPackage mod_name + + ; updateEps_ $ \eps -> + eps { eps_PIT = extendModuleEnv (eps_PIT eps) (mi_module fake_iface) fake_iface } + -- Not found, so add an empty iface to -- the EPS map so that we don't look again - fake_iface = emptyModIface opt_InPackage mod_name - ; new_pit = extendModuleEnv pit (mi_module fake_iface) fake_iface - ; new_eps = eps { eps_PIT = new_pit } } - ; writeMutVar eps_var new_eps + ; returnM (Left err) } ; -- Found and parsed! Right iface -> - let { mod = mi_module iface } in + let { mod = mi_module iface + ; mod_name = moduleName mod } in -- Sanity check. If we're system-importing a module we know nothing at all -- about, it should be from a different package to this one WARN( case from of { ImportBySystem -> True; other -> False } && not (isJust mb_dep) && isHomeModule mod, - ppr mod $$ ppr mb_dep) + ppr mod $$ ppr mb_dep $$ ppr (eps_is_boot eps) ) - initIfaceLcl (moduleName mod) $ do + initIfaceLcl mod_name $ do -- Load the new ModIface into the External Package State -- Even home-package interfaces loaded by loadInterface -- (which only happens in OneShot mode; in Batch/Interactive @@ -227,19 +263,23 @@ loadInterface doc_str mod_name from -- If we do loadExport first the wrong info gets into the cache (unless we -- explicitly tag each export which seems a bit of a bore) - { new_eps_decls <- loadDecls mod (eps_decls eps) (mi_decls iface) - ; new_eps_insts <- loadInsts mod (eps_insts eps) (mi_insts iface) - ; new_eps_rules <- loadRules mod (eps_rules eps) (mi_rules iface) + { ignore_prags <- doptM Opt_IgnoreInterfacePragmas + ; new_eps_decls <- loadDecls ignore_prags mod (mi_decls iface) + ; new_eps_rules <- loadRules ignore_prags mod_name (mi_rules iface) + ; new_eps_insts <- loadInsts mod_name (mi_insts iface) ; let { final_iface = iface { mi_decls = panic "No mi_decls in PIT", mi_insts = panic "No mi_insts in PIT", - mi_rules = panic "No mi_rules in PIT" } + mi_rules = panic "No mi_rules in PIT" } } + + ; updateEps_ $ \ eps -> + eps { eps_PIT = extendModuleEnv (eps_PIT eps) mod final_iface, + eps_PTE = addDeclsToPTE (eps_PTE eps) new_eps_decls, + eps_rules = addRulesToPool (eps_rules eps) new_eps_rules, + eps_insts = addInstsToPool (eps_insts eps) new_eps_insts, + eps_stats = addEpsInStats (eps_stats eps) (length new_eps_decls) + (length new_eps_insts) (length new_eps_rules) } - ; new_eps = eps { eps_PIT = extendModuleEnv pit mod final_iface, - eps_decls = new_eps_decls, - eps_rules = new_eps_rules, - eps_insts = new_eps_insts } } - ; writeMutVar eps_var new_eps ; return (Right final_iface) }}}}} @@ -252,25 +292,37 @@ loadInterface doc_str mod_name from -- the declaration itself, will find the fully-glorious Name ----------------------------------------------------- -loadDecls :: Module -> DeclPool +addDeclsToPTE :: PackageTypeEnv -> [[(Name,TyThing)]] -> PackageTypeEnv +addDeclsToPTE pte things = foldl extendNameEnvList pte things + +loadDecls :: Bool -- Don't load pragmas into the decl pool + -> Module -> [(Version, IfaceDecl)] - -> IfM lcl DeclPool -loadDecls mod (Pool decls_map n_in n_out) decls - = do { ignore_prags <- doptM Opt_IgnoreInterfacePragmas - ; decls_map' <- foldlM (loadDecl ignore_prags mod) decls_map decls - ; returnM (Pool decls_map' (n_in + length decls) n_out) } - -loadDecl ignore_prags mod decls_map (_version, decl) - = do { main_name <- mk_new_bndr Nothing (ifName decl) - ; let decl' | ignore_prags = zapIdInfo decl - | otherwise = decl - - -- Populate the name cache with final versions of all the subordinate names - ; mapM_ (mk_new_bndr (Just main_name)) (ifaceDeclSubBndrs decl') - - -- Extend the decls pool with a mapping for the main name (only) - ; returnM (extendNameEnv decls_map main_name decl') } + -> IfL [[(Name,TyThing)]] -- The list can be poked eagerly, but the + -- TyThings are forkM'd thunks +loadDecls ignore_prags mod decls = mapM (loadDecl ignore_prags mod) decls + +loadDecl ignore_prags mod (_version, decl) + = do { -- Populate the name cache with final versions of all + -- the names associated with the decl + main_name <- mk_new_bndr Nothing (ifName decl) + ; implicit_names <- mapM (mk_new_bndr (Just main_name)) (ifaceDeclSubBndrs decl) + + -- Typecheck the thing, lazily + ; thing <- forkM doc (bumpDeclStats main_name >> tcIfaceDecl stripped_decl) + ; let mini_env = mkOccEnv [(getOccName t, t) | t <- implicitTyThings thing] + lookup n = case lookupOccEnv mini_env (getOccName n) of + Just thing -> thing + Nothing -> pprPanic "loadDecl" (ppr main_name <+> ppr n) + + ; returnM ((main_name, thing) : [(n, lookup n) | n <- implicit_names]) } + -- We build a list from the *known* names, with (lookup n) thunks + -- as the TyThings. That way we can extend the PTE without poking the + -- thunks where + stripped_decl | ignore_prags = discardDeclPrags decl + | otherwise = decl + -- mk_new_bndr allocates in the name cache the final canonical -- name for the thing, with the correct -- * package info @@ -279,50 +331,73 @@ loadDecl ignore_prags mod decls_map (_version, decl) -- imported name, to fix the module correctly in the cache mk_new_bndr mb_parent occ = newGlobalBinder mod occ mb_parent loc loc = importedSrcLoc (moduleUserString mod) + doc = ptext SLIT("Declaration for") <+> ppr (ifName decl) -zapIdInfo decl@(IfaceId {ifIdInfo = HasInfo _}) = decl { ifIdInfo = DiscardedInfo } -zapIdInfo decl = decl - -- Don't alter "NoInfo", just "HasInfo" +discardDeclPrags :: IfaceDecl -> IfaceDecl +discardDeclPrags decl@(IfaceId {ifIdInfo = HasInfo _}) = decl { ifIdInfo = NoInfo } +discardDeclPrags decl = decl + +bumpDeclStats :: Name -> IfL () -- Record that one more declaration has actually been used +bumpDeclStats name + = do { traceIf (text "Loading decl for" <+> ppr name) + ; updateEps_ (\eps -> let stats = eps_stats eps + in eps { eps_stats = stats { n_decls_out = n_decls_out stats + 1 } }) + } ----------------- ifaceDeclSubBndrs :: IfaceDecl -> [OccName] -- *Excludes* the 'main' name, but *includes* the implicitly-bound names --- Rather revolting, because it has to predict what gets bound +-- Deeply revolting, because it has to predict what gets bound, +-- especially the question of whether there's a wrapper for a datacon ifaceDeclSubBndrs (IfaceClass {ifCtxt = sc_ctxt, ifName = cls_occ, ifSigs = sigs }) - = [tc_occ, dc_occ] ++ + = [tc_occ, dc_occ, dcww_occ] ++ [op | IfaceClassOp op _ _ <- sigs] ++ - [mkSuperDictSelOcc n cls_occ | n <- [1..length sc_ctxt]] ++ - -- The worker and wrapper for the DataCon of the class TyCon - -- are based off the data-con name - [mkDataConWrapperOcc dc_occ, mkDataConWorkerOcc dc_occ] + [mkSuperDictSelOcc n cls_occ | n <- [1..n_ctxt]] where + n_ctxt = length sc_ctxt + n_sigs = length sigs tc_occ = mkClassTyConOcc cls_occ dc_occ = mkClassDataConOcc cls_occ - -ifaceDeclSubBndrs (IfaceData {ifCons = Unknown}) = [] -ifaceDeclSubBndrs (IfaceData {ifCons = DataCons cons}) - = foldr ((++) . conDeclBndrs) [] cons - -ifaceDeclSubBndrs other = [] - -conDeclBndrs (IfaceConDecl con_occ _ _ _ _ fields) - = fields ++ - [con_occ, mkDataConWrapperOcc con_occ, mkDataConWorkerOcc con_occ] - + dcww_occ | is_newtype = mkDataConWrapperOcc dc_occ -- Newtypes have wrapper but no worker + | otherwise = mkDataConWorkerOcc dc_occ -- Otherwise worker but no wrapper + is_newtype = n_sigs + n_ctxt == 1 -- Sigh + +ifaceDeclSubBndrs (IfaceData {ifCons = IfAbstractTyCon}) + = [] +-- Newtype +ifaceDeclSubBndrs (IfaceData {ifCons = IfNewTyCon (IfVanillaCon { ifConOcc = con_occ, + ifConFields = fields})}) + = fields ++ [con_occ, mkDataConWrapperOcc con_occ] + -- Wrapper, no worker; see MkId.mkDataConIds + +ifaceDeclSubBndrs (IfaceData {ifCons = IfDataTyCon _ cons}) + = nub (concatMap fld_occs cons) -- Eliminate duplicate fields + ++ concatMap dc_occs cons + where + fld_occs (IfVanillaCon { ifConFields = fields }) = fields + fld_occs (IfGadtCon {}) = [] + dc_occs con_decl + | has_wrapper = [con_occ, work_occ, wrap_occ] + | otherwise = [con_occ, work_occ] + where + con_occ = ifConOcc con_decl + strs = ifConStricts con_decl + wrap_occ = mkDataConWrapperOcc con_occ + work_occ = mkDataConWorkerOcc con_occ + has_wrapper = any isMarkedStrict strs -- See MkId.mkDataConIds (sigh) + -- ToDo: may miss strictness in existential dicts + +ifaceDeclSubBndrs _other = [] ----------------------------------------------------- -- Loading instance decls ----------------------------------------------------- -loadInsts :: Module -> InstPool -> [IfaceInst] -> IfL InstPool -loadInsts mod (Pool pool n_in n_out) decls - = do { new_pool <- foldlM (loadInstDecl (moduleName mod)) pool decls - ; returnM (Pool new_pool - (n_in + length decls) - n_out) } +loadInsts :: ModuleName -> [IfaceInst] -> IfL [(Name, Gated IfaceInst)] +loadInsts mod decls = mapM (loadInstDecl mod) decls -loadInstDecl mod pool decl@(IfaceInst {ifInstHead = inst_ty}) +loadInstDecl mod decl@(IfaceInst {ifInstHead = inst_ty}) = do { -- Find out what type constructors and classes are "gates" for the -- instance declaration. If all these "gates" are slurped in then @@ -352,33 +427,30 @@ loadInstDecl mod pool decl@(IfaceInst {ifInstHead = inst_ty}) let { (cls_ext, tc_exts) = ifaceInstGates inst_ty } ; cls <- lookupIfaceExt cls_ext ; tcs <- mapM lookupIfaceTc tc_exts - ; let { new_pool = extendNameEnv_C combine pool cls [(tcs, (mod,decl))] - ; combine old _ = (tcs,(mod,decl)) : old } - ; returnM new_pool + ; returnM (cls, (tcs, (mod,decl))) } ----------------------------------------------------- -- Loading Rules ----------------------------------------------------- -loadRules :: Module -> RulePool -> [IfaceRule] -> IfL RulePool -loadRules mod pool@(Pool rule_pool n_in n_out) rules - = do { ignore_prags <- doptM Opt_IgnoreInterfacePragmas - ; if ignore_prags then - returnM pool - else do - { new_pool <- foldlM (loadRule (moduleName mod)) rule_pool rules - ; returnM (Pool new_pool (n_in + length rules) n_out) } } +loadRules :: Bool -- Don't load pragmas into the decl pool + -> ModuleName + -> [IfaceRule] -> IfL [Gated IfaceRule] +loadRules ignore_prags mod rules + | ignore_prags = returnM [] + | otherwise = mapM (loadRule mod) rules -loadRule :: ModuleName -> RulePoolContents -> IfaceRule -> IfL RulePoolContents +loadRule :: ModuleName -> IfaceRule -> IfL (Gated IfaceRule) -- "Gate" the rule simply by a crude notion of the free vars of -- the LHS. It can be crude, because having too few free vars is safe. -loadRule mod_name pool decl@(IfaceRule {ifRuleHead = fn, ifRuleArgs = args}) +loadRule mod decl@(IfaceRule {ifRuleHead = fn, ifRuleArgs = args}) = do { names <- mapM lookupIfaceExt (fn : arg_fvs) - ; returnM (addRuleToPool pool (mod_name, decl) names) } + ; returnM (names, (mod, decl)) } where arg_fvs = [n | arg <- args, n <- crudeIfExprGblFvs arg] + --------------------------- crudeIfExprGblFvs :: IfaceExpr -> [IfaceExtName] -- A crude approximation to the free external names of an IfExpr @@ -498,7 +570,11 @@ findAndReadIface doc_str mod_name hi_boot_file ; read_result <- readIface mod_name file_path hi_boot_file ; case read_result of Left err -> returnM (Left (badIfaceFile file_path err)) - Right iface -> returnM (Right iface) + Right iface + | moduleName (mi_module iface) /= mod_name -> + return (Left (wrongIfaceModErr iface mod_name file_path)) + | otherwise -> + returnM (Right iface) }}} findHiFile :: ModuleName -> IsBootInterface @@ -556,7 +632,7 @@ read_iface dflags wanted_mod file_path is_hi_boot_file Left exn -> return (Left (text (showException exn))) ; Right buffer -> case unP parseIface (mkPState buffer loc dflags) of - PFailed loc1 loc2 err -> return (Left (showPFailed loc1 loc2 err)) + PFailed span err -> return (Left (mkLocMessage span err)) POk _ iface | wanted_mod == actual_mod -> return (Right iface) | otherwise -> return (Left err) @@ -585,21 +661,21 @@ read_iface dflags wanted_mod file_path is_hi_boot_file initExternalPackageState :: ExternalPackageState initExternalPackageState = EPS { + eps_is_boot = emptyModuleEnv, eps_PIT = emptyPackageIfaceTable, eps_PTE = emptyTypeEnv, eps_inst_env = emptyInstEnv, eps_rule_base = emptyRuleBase, - eps_decls = emptyPool emptyNameEnv, - eps_insts = emptyPool emptyNameEnv, - eps_rules = foldr add (emptyPool []) builtinRules + eps_insts = emptyNameEnv, + eps_rules = addRulesToPool [] (map mk_gated_rule builtinRules), + -- Initialise the EPS rule pool with the built-in rules + eps_stats = EpsStats { n_ifaces_in = 0, n_decls_in = 0, n_decls_out = 0 + , n_insts_in = 0, n_insts_out = 0 + , n_rules_in = length builtinRules, n_rules_out = 0 } } where - -- Initialise the EPS rule pool with the built-in rules - add (fn_name, core_rule) (Pool rules n_in n_out) - = Pool rules' (n_in+1) n_out - where - rules' = addRuleToPool rules iface_rule [fn_name] - iface_rule = (nameModuleName fn_name, IfaceBuiltinRule (mkIfaceExtName fn_name) core_rule) + mk_gated_rule (fn_name, core_rule) + = ([fn_name], (nameModuleName fn_name, IfaceBuiltinRule (mkIfaceExtName fn_name) core_rule)) \end{code} @@ -632,23 +708,17 @@ ghcPrimIface \begin{code} ifaceStats :: ExternalPackageState -> SDoc ifaceStats eps - = hcat [text "Renamer stats: ", stats] + = hcat [text "Renamer stats: ", msg] where - n_mods = length [() | _ <- moduleEnvElts (eps_PIT eps)] - -- This is really only right for a one-shot compile - - Pool _ n_decls_in n_decls_out = eps_decls eps - Pool _ n_insts_in n_insts_out = eps_insts eps - Pool _ n_rules_in n_rules_out = eps_rules eps - - stats = vcat - [int n_mods <+> text "interfaces read", - hsep [ int n_decls_out, text "type/class/variable imported, out of", - int n_decls_in, text "read"], - hsep [ int n_insts_out, text "instance decls imported, out of", - int n_insts_in, text "read"], - hsep [ int n_rules_out, text "rule decls imported, out of", - int n_rules_in, text "read"] + stats = eps_stats eps + msg = vcat + [int (n_ifaces_in stats) <+> text "interfaces read", + hsep [ int (n_decls_out stats), text "type/class/variable imported, out of", + int (n_decls_in stats), text "read"], + hsep [ int (n_insts_out stats), text "instance decls imported, out of", + int (n_insts_in stats), text "read"], + hsep [ int (n_rules_out stats), text "rule decls imported, out of", + int (n_rules_in stats), text "read"] ] \end{code} @@ -681,4 +751,15 @@ noIfaceErr dflags mod_name boot_file files text "(use -v to see a list of the files searched for)" | otherwise = hang (ptext SLIT("locations searched:")) 4 (vcat (map text files)) + +wrongIfaceModErr iface mod_name file_path + = sep [ptext SLIT("Interface file") <+> iface_file, + ptext SLIT("contains module") <+> quotes (ppr (mi_module iface)) <> comma, + ptext SLIT("but we were expecting module") <+> quotes (ppr mod_name), + sep [ptext SLIT("Probable cause: the source code which generated"), + nest 2 iface_file, + ptext SLIT("has an incompatible module name") + ] + ] + where iface_file = doubleQuotes (text file_path) \end{code}